liu.seSearch for publications in DiVA
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Estimation of drying time of fresh concrete slabs: acomparative study
Linköping University, Department of Science and Technology, Communications and Transport Systems. Linköping University, Faculty of Science & Engineering. (Byggtknik)
Gävle, Sweden.
2017 (English)In: Journal of Engineering, Design and Technology, ISSN 1726-0531, E-ISSN 1758-8901, Vol. 15, no 2, 134-148 p.Article in journal, Editorial material (Refereed) Published
Abstract [en]

Purpose – The purpose of this study is to attempt to compare experimental results for a number of modelsfor the prediction of the drying time of new concrete floors. The investigated methods are the table method, the Swedish Concrete Association (SCA) method and the free computer programme TorkaS 3.2.

Design/methodology/approach – The comparison is based on moisture measurements of four differentfloor specimens. The specimens have different ratios (w/c 0.38, 0.6 and 0.7).

Findings – The results show that there is a good agreement between the table method and the measured values on the specimens with high water-cement ratio (w/c 0.6 and 0.7). However, the deviation becomes greater at lower water-cement ratio (w/c 0.38). TorkaS also resulted in a good agreement with the measurements. However, it is noted that as the drying time increases, the programme exhibits a slowdehydration trend at higher w/c ratios. The SCA method shows various results within the permissible deviation. Moreover, the moisture distribution in concrete with high w/c ratios is found to be mainly influencedby moisture diffusion and little by self-desiccation.

Research limitations/implications – This study is limited to concrete slabs that are drying from oneside in an enclosed building with an heating, ventilation and air conditioning (HVAC) system operating normally. Moreover, this study concerns concrete without special additives (e.g. silica fumes), which can beused in some specific cases to accelerate or retard the hydration (cure) process.

Practical implications – These compared methods are used widely in Sweden; therefore, it will be interesting to understand their applicability range. Another focus in this paper is to investigate how the effect of self-desiccation of concrete is related to the w/c ratios, taking into consideration the result of these predictionmodels.

Social implications – The paper can suit academic researchers, as well as the commercial industries, in asense that the comparative study will pave a way to the best method to be used for drying time estimation.

Originality/value – The paper contains new information and could be useful to researchers and commercial industries.

Place, publisher, year, edition, pages
Emerald Group Publishing Limited, 2017. Vol. 15, no 2, 134-148 p.
Keyword [en]
Drying time, Self-desiccation, Water-cement ratio, Prediction methods
National Category
Construction Management
Identifiers
URN: urn:nbn:se:liu:diva-135796DOI: 10.1108/JEDT-02-2016-0011OAI: oai:DiVA.org:liu-135796DiVA: diva2:1089568
Projects
Byggteknik
Funder
Linköpings universitet
Available from: 2017-04-20 Created: 2017-04-20 Last updated: 2017-05-19

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Hassan, Osama
By organisation
Communications and Transport SystemsFaculty of Science & Engineering
In the same journal
Journal of Engineering, Design and Technology
Construction Management

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 15 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf